A flexible leather cutting device
By introducing a tensioning mechanism and a motor-driven cutting wheel design into the flexible leather cutting device, the problems of local stretching and displacement during flexible leather cutting are solved, achieving a high-precision and flat cutting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANHE HONGSHENG YITONG AUTOMOBILE INTERIOR DECORATION MATERIAL CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-07
AI Technical Summary
Existing flexible leather cutting devices lack an effective tensioning mechanism, which causes local stretching or displacement due to elastic deformation during cutting, resulting in cutting trajectory deviation and cutting misalignment, thus reducing cutting accuracy.
The design includes a first linear module, a second linear module, an electric push rod, a U-shaped frame, a connecting column, a motor, flexible leather cutting wheels, and a pressure-tightening mechanism. The electric push rod and the tensioning mechanism apply tension to the leather to ensure that the leather remains taut during the cutting process. Combined with the motor-driven cutting wheels, precise cutting is achieved.
This technology allows flexible leather to remain taut during the cutting process, avoiding cutting trajectory deviation caused by elastic deformation, ensuring cutting accuracy and smooth edges, and reducing burrs and tears.
Smart Images
Figure CN224464784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather processing technology, specifically a flexible leather cutting device. Background Technology
[0002] With the widespread application of leather products in fashion, home furnishings, automobiles and other fields, flexible leather, as a high-quality material that combines softness and durability, directly affects product quality and production efficiency through its cutting and processing precision and efficiency.
[0003] For example, patent publication number CN222349032U discloses a cutting device for leather processing, including a base and multiple support columns, each of which is fixedly connected to the base. It also includes a pressing assembly, a transmission assembly, and a processing assembly. The pressing assembly includes a support seat, a slider, a rotating shaft, and a pressing roller. Two support seats are fixedly connected to the base, two sliders are slidably connected to the support seats, the rotating shaft is rotatably connected to the sliders and located between the two sliders, the pressing roller is fixedly connected to the rotating shaft, the transmission assembly is connected to the support seats, and the processing assembly is connected to the support seats. This invention solves the problem that, in the use of a leather processing cutting device, the leather needs to be rolled flat each time it is cut, leading to reduced leather processing efficiency.
[0004] However, the aforementioned leather processing cutting device is ineffective because the flexible leather itself is elastic. When cutting the flattened leather, the lack of an effective leather tensioning mechanism can cause the material to be stretched or displaced due to stress the moment the cutting tool contacts the leather, which can lead to misalignment of the cut. Utility Model Content
[0005] The purpose of this invention is to provide a flexible leather cutting device to solve the problem mentioned in the background art, which is that due to the lack of an effective tensioning mechanism, the flexible leather will be stretched or displaced due to elastic deformation during cutting, resulting in deviation of the cutting trajectory, misalignment of the cut, and ultimately reduced cutting accuracy.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A flexible leather cutting device includes: an operating table, on one end of the upper surface of the operating table two sets of first electric push rods symmetrically rotatably mounted, and one end of the piston rod of the two sets of first electric push rods rotatably mounted on one end of a V-shaped plate, while the folded end of the V-shaped plate is rotatably mounted in a U-shaped frame, the U-shaped frame is fixedly mounted on the upper surface of the operating table, and a horizontal pressure column is fixedly mounted between the other ends of the two sets of V-shaped plates; a pressure-tightening mechanism is symmetrically rotatably mounted on the other end of the upper surface of the operating table.
[0008] The upper surface of the operating table is fixedly mounted with two ends of a first linear module, and a U-shaped frame is fixedly mounted between the first linear modules. A second linear module is fixedly mounted on the upper surface of the U-shaped frame, and a T-shaped plate is fixedly mounted on the upper surface of the U-shaped frame. A mounting plate is slidably mounted on one end of the T-shaped plate, and a connecting column is rotatably mounted on one end of the mounting plate. A flexible leather cutting scissor wheel is rotatably mounted on the lower surface of the connecting column.
[0009] Preferably, both the first linear module and the second linear module are driven by a motor in the form of gears meshing with a toothed plate.
[0010] Preferably, a motor is fixedly mounted on one end of the mounting plate, and the output shaft of the motor is fixedly connected to the upper surface of the connecting column. The upper surface of the mounting plate is fixedly connected to the piston rod of the third electric push rod, and the third electric push rod is fixedly mounted on the upper surface of the T-shaped plate.
[0011] Preferably, the U-shaped frame can slide over the upper end of the horizontal pressure column and the pressure contact tensioning mechanism through the slot on the lower surface.
[0012] Preferably, the pressure-tightening mechanism includes two sets of second electric push rods, which are symmetrically and rotatably mounted on one end of the upper surface of the operating table. A connecting cylinder is fixedly mounted on one end of the piston rod of the second electric push rod, and a pressure wheel is rotatably mounted between the two sets of connecting cylinders.
[0013] Preferably, the inner ring walls of both sets of connecting cylinders are fixedly connected to the outer ring end of the torsion spring, while the inner ring end of the torsion spring is fixedly connected to the outer surface of the shaft of the pressure contact wheel.
[0014] Preferably, guide rods are fixedly installed at one end of the outer side of both sets of connecting cylinders, and the guide rods slide within the U-shaped traction plates. The two sets of U-shaped traction plates are symmetrically fixed at both ends of the upper surface of the operating table and are inclined upwards, so that when the second electric push rod pulls the connecting cylinder, it can slide within the U-shaped traction plates through the guide rods fixedly connected to the outer side.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. Through the design of the first linear module, the second linear module, the third electric push rod, the U-shaped frame, the connecting column, the motor, the flexible leather cutting scissor wheel, and the pressure-tightening mechanism, when cutting leather, the flexible leather can be laid flat on the operating table surface and then the two sets of first electric push rods can be activated. The piston rods of the push rods extend and push the V-shaped plate to rotate around the U-shaped frame, thereby causing the horizontal pressure column to move downward to initially press and fix one end of the leather, preventing the leather from sliding as a whole in subsequent operations. Then, the pressure-tightening mechanism is activated to press against the other end of the leather, and with continuous pulling, it can apply a pulling tension force to the other end of the leather. By continuously applying tension force to the leather, the leather can be kept taut in both the horizontal and vertical directions to eliminate wrinkles and looseness.
[0017] During cutting, the cutting pattern and path can be set through the control system. The first and second linear modules are driven by a motor-driven gear meshing plate, allowing the U-shaped frame to move laterally or longitudinally on the upper surface of the operating table. This precisely moves the flexible leather cutting shears to the cutting starting position. Based on the leather thickness, the third electric push rod is activated. Its piston rod extends and retracts, causing the mounting plate to slide on the T-shaped plate, adjusting the pressing depth of the connecting column and the flexible leather cutting shears. This ensures the flexible leather cutting shears can cut into the leather with appropriate force, allowing it to cut according to the path. During the process, the motor fixedly installed at one end of the mounting plate can be started simultaneously. The motor can drive the flexible leather cutting scissor wheel installed at the lower end of the connecting column to adjust the cutting direction in real time according to the cutting path. Since the leather is in a taut state, it can effectively avoid stretching and displacement caused by elastic deformation during cutting, thereby ensuring that the cutting trajectory is consistent with the design pattern and achieving high-precision cutting. In addition, the lower surface of the U-shaped frame is provided with a groove, which can slide over the upper end of the horizontal pressure column and the pressure tensioning mechanism when moving during the cutting process, avoiding interference with the pressing components and ensuring smooth operation of the cutting mechanism.
[0018] 2. Through the design of the second electric push rod, connecting cylinder, pressure roller, torsion spring, guide rod, and U-shaped traction plate, after one end of the leather is fixed by the horizontal pressure column, the second electric push rod can be activated to pull the stopper rod, which drives the connecting cylinder to slide within the U-shaped traction plate via the guide rod. This allows the pulled connecting cylinder to gradually move downwards. The gradually moving connecting cylinder then drives the pressure roller, which is rotatably mounted between them, to gradually press down on the other end of the leather. During this process, the pressure roller is continuously pulled by the second electric push rod through the connecting cylinder, while the guide rod also slides along with it in the horizontal part within the U-shaped traction plate, thus achieving... The pressure roller applies stable pressure to the leather. Since the pressure roller rotates between two sets of connecting cylinders, and the connecting cylinders are equipped with a torsion spring, when the pressure roller is pulled, the friction between the roller and the leather overcomes the rotational force of the torsion spring, causing the roller to roll on the surface of the leather. The rotational force of the torsion spring drives the pressure roller to apply tension to the leather, thereby making the leather evenly taut and forming a flat cutting surface with constant tension. Cutting under tension can make the leather edges smoother and reduce problems such as rough edges and tears. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the connecting column and the cutting roller of this utility model;
[0021] Figure 3 This is a schematic diagram of the U-shaped frame of this utility model;
[0022] Figure 4 This is a schematic diagram of the pressure-tightening mechanism of this utility model.
[0023] In the diagram: 1. Operating platform; 101. First linear module; 102. Second linear module; 103. T-shaped plate; 104. U-shaped frame; 105. Third electric push rod; 106. Connecting column; 107. Motor; 108. Flexible leather cutting scissor wheel; 109. First electric push rod; 110. V-shaped plate; 111. U-shaped frame; 112. Horizontal pressure column; 113. Mounting plate; 2. Pressure contact tensioning mechanism; 201. Second electric push rod; 202. Connecting cylinder; 203. Pressure contact wheel; 204. Torsion spring; 205. Guide rod; 206. U-shaped traction plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-4 This embodiment provides the following technical solution:
[0026] like Figures 1-3 As shown, a flexible leather cutting device includes: an operating table 1, on one end of the upper surface of the operating table 1, two sets of first electric push rods 109 are symmetrically rotatably mounted, and one end of the piston rod of the two sets of first electric push rods 109 is rotatably mounted on one end of a V-shaped plate 110, while the folded end of the V-shaped plate 110 is rotatably mounted in a U-shaped frame 111, the U-shaped frame 111 is fixedly mounted on the upper surface of the operating table 1, and a horizontal pressure column 112 is fixedly mounted between the other ends of the two sets of V-shaped plates 110. A pressure-tightening mechanism 2 is symmetrically rotatably mounted on the other end of the upper surface of the operating table 1.
[0027] The upper surface of the operating table 1 is fixedly mounted with two ends of a first linear module 101, and a U-shaped frame 104 is fixedly mounted between the first linear modules 101. A second linear module 102 is fixedly mounted on the upper surface of the U-shaped frame 104, and a T-shaped plate 103 is fixedly mounted on the upper surface of the U-shaped frame 104. A mounting plate 113 is slidably mounted on one end of the T-shaped plate 103, and a connecting column 106 is rotatably mounted on one end of the mounting plate 113. A flexible leather cutting scissor wheel 108 is rotatably mounted on the lower surface of the connecting column 106. Both the first linear module 101 and the second linear module 102 are driven by a motor in the form of gear meshing with a toothed plate. A motor 107 is fixedly mounted on one end of the mounting plate 113, and the output shaft of the motor 107 is fixedly connected to the upper surface of the connecting column 106. The upper surface of the mounting plate 113 is fixedly connected to the piston rod of the third electric push rod 105, which is fixedly mounted on the upper surface of the T-shaped plate 103. The U-shaped frame 104 can slide through the slot on its lower surface from the upper end of the horizontal pressure column 112 and the pressure contact tensioning mechanism 2.
[0028] Through the design of the first linear module 101, the second linear module 102, the third electric push rod 105, the U-shaped frame 104, the connecting column 106, the motor 107, the flexible leather cutting scissor wheel 108, and the pressure contact tensioning mechanism 2, when cutting leather, the flexible leather can be laid flat on the surface of the operating table 1 and then the two sets of first electric push rods 109 can be activated. Their piston rods extend and push the V-shaped plate 110 to rotate around the U-shaped frame 111, thereby causing the horizontal pressure column 112 to move downward to initially press and fix one end of the leather, preventing the leather from sliding as a whole in subsequent operations. Then, the pressure contact tensioning mechanism 2 is activated to press against the other end of the leather, and with continuous pulling, it can apply a pulling tension force to the other end of the leather. By continuously applying tension force to the leather, the leather can be kept taut in both the horizontal and vertical directions to eliminate wrinkles and looseness.
[0029] During cutting, the cutting pattern and path can be set through the control system, and the first linear module 101 and the second linear module 102 are driven by a motor to engage gear plates, so that the U-shaped frame 104 can move laterally or longitudinally on the upper surface of the operating table 1. This allows the flexible leather cutting shear wheel 108 to be precisely moved to the cutting starting position. According to the leather thickness, the third electric push rod 105 is activated. Its piston rod extends and retracts, causing the mounting plate 113 to slide on the T-shaped plate 103 to adjust the pressing depth of the connecting column 106 and the flexible leather cutting shear wheel 108, ensuring that the flexible leather cutting shear wheel 108 can cut into the leather with appropriate force and allow it to reach the root. During the path cutting process, the motor 107 fixedly installed at one end of the mounting plate 113 can be started simultaneously. The motor 107 can drive the flexible leather cutting shear wheel 108, which is rotated at the lower end of the connecting column 106, to adjust the cutting direction in real time according to the cutting path. Since the leather is in a tensioned state, it can effectively avoid stretching and displacement caused by elastic deformation during cutting, thereby ensuring that the cutting trajectory is consistent with the design pattern and achieving high-precision cutting. In addition, the lower surface of the U-shaped frame 104 is provided with a groove, which can slide over the upper end of the horizontal pressure column 112 and the pressure and tensioning mechanism 2 when moving during the cutting process, avoiding interference with the pressing components and ensuring smooth operation of the cutting mechanism.
[0030] like Figure 4 As shown, the pressure contact tensioning mechanism 2 includes two sets of second electric push rods 201. The two sets of second electric push rods 201 are symmetrically rotated and installed at one end of the upper surface of the operating table 1. A connecting cylinder 202 is fixedly installed at one end of the piston rod of the second electric push rod 201, and a pressure contact wheel 203 is rotatably installed between the two sets of connecting cylinders 202.
[0031] Both sets of connecting cylinders 202 are fixedly connected to the outer ring end of the torsion spring 204 on their inner ring walls, while the inner ring end of the torsion spring 204 is fixedly connected to the outer surface of the shaft of the pressure wheel 203. Guide rods 205 are fixedly installed on one outer end of each set of connecting cylinders 202, and these guide rods 205 slide within the U-shaped traction plate 206. The two sets of U-shaped traction plates 206 are symmetrically fixed at both ends of the upper surface of the operating table 1 and are inclined upwards, so that when the second electric push rod 201 pulls the connecting cylinder 202, it can slide within the U-shaped traction plate 206 via the guide rods 205 fixedly connected to the outer side.
[0032] Through the design of the second electric push rod 201, connecting cylinder 202, pressure roller 203, torsion spring 204, guide rod 205, and U-shaped traction plate 206, after one end of the leather is pressed and fixed by the horizontal pressure column 112, the second electric push rod 201 can be activated to pull the stopper rod, causing the connecting cylinder 202 to slide within the U-shaped traction plate 206 via the guide rod 205. This allows the pulled connecting cylinder 202 to gradually move downwards. The gradually moving connecting cylinder 202 can then drive the pressure roller 203, which is rotatably mounted between them, to gradually press down on the other end of the leather. During this process, the pressure roller 203 is continuously pulled by the second electric push rod 201 through the connecting cylinder 202, while the guide rod 205 also slides along with it within the U-shaped traction plate 206. The horizontal section within plate 206 allows the pressure roller 203 to apply stable pressure to the leather. Since the pressure roller 203 rotates between two sets of connecting cylinders 202, and the connecting cylinders 202 are equipped with a torsion spring 204, when the pressure roller 203 pressing on the leather is pulled, the friction between the pressure roller and the leather overcomes the rotational force of the torsion spring 204, causing the pressure roller 203 to roll on the surface of the leather. The rotational force of the torsion spring 204 drives the pressure roller 203 to apply tension to the leather, thereby making the leather evenly taut and forming a flat cutting surface with constant tension. Cutting under tension can make the leather edges smoother and reduce problems such as rough edges and tears.
[0033] Based on the above technical solution, the working steps of this solution are summarized as follows: When cutting leather, the flexible leather can be laid flat on the surface of the operating table 1, and then the two sets of first electric push rods 109 can be activated. The piston rods of the first electric push rods 109 extend and push the V-shaped plate 110 to rotate around the U-shaped frame 111, thereby causing the horizontal pressure column 112 to move downward to initially press and fix one end of the leather, preventing the leather from sliding as a whole in subsequent operations. Then, the second electric push rod 201 is activated to pull the stopper rod and drive the connecting cylinder 202 to slide within the U-shaped traction plate 206 through the guide rod 205, thereby allowing the pulled connecting cylinder 202 to gradually move downward. As the connecting cylinder 202 moves downward, it drives the pressure roller 203, which is rotatably mounted between them, to gradually press down on the other end of the leather. During this process, the pressure roller 203 is continuously pulled by the second electric push rod 201 through the connecting cylinder 202. At the same time, the guide rod 205 also slides in the horizontal part of the U-shaped traction plate 206, so as to achieve stable pressure of the pressure roller 203 on the leather. Since the pressure roller 203 rotates between the two sets of connecting cylinders 202, and the connecting cylinder 202 is provided with a torsion spring 204, the pressure roller 203 pressing on the leather can be pulled. During operation, the friction between the leather and the rollers overcomes the rotational force of the torsion spring 204, causing the rollers to roll on the leather surface. The rotational force of the torsion spring 204 drives the pressure roller 203 to apply tension to the leather, thus uniformly taut the leather and forming a flat cutting surface with constant tension. Subsequently, the cutting pattern and path can be set through the control system, and the first linear module 101 and the second linear module 102 can be driven by a motor to engage gear plates, enabling the U-shaped frame 104 to move laterally or longitudinally on the upper surface of the operating table 1, thereby achieving the cutting of the flexible leather. The cutting shear wheel 108 moves precisely to the cutting start position and activates the third electric push rod 105 according to the leather thickness. The piston rod of the push rod extends and retracts, causing the mounting plate 113 to slide on the T-shaped plate 103 to adjust the pressing depth of the connecting column 106 and the flexible leather cutting shear wheel 108. This ensures that the flexible leather cutting shear wheel 108 can cut into the leather with appropriate force. During the cutting process according to the path, the motor 107 fixedly installed at one end of the mounting plate 113 can be started at the same time. The motor 107 can drive the flexible leather cutting shear wheel 108, which is rotated at the lower end of the connecting column 106, to adjust the cutting direction in real time according to the cutting path.
[0034] In summary, during the pressing process of flexible leather, this device can simultaneously apply a pulling tension force to the other end of the leather. By continuously applying this tension force to the leather, it can keep the leather taut in both the horizontal and vertical directions, eliminating wrinkles and looseness. This ensures that the cutting trajectory is consistent with the design pattern, achieving high-precision cutting.
[0035] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flexible leather cutting device, characterized in that, include: The operating table (1) has two sets of first electric push rods (109) symmetrically mounted on one end of its upper surface. The piston rods of the two sets of first electric push rods (109) are rotatably mounted on one end of a V-shaped plate (110). The angled end of the V-shaped plate (110) is rotatably mounted inside a U-shaped frame (111). The U-shaped frame (111) is fixedly mounted on the upper surface of the operating table (1). A horizontal pressure column (112) is fixedly mounted between the other ends of the two sets of V-shaped plates (110). A pressure-tightening mechanism (2) is symmetrically mounted on the other end of the upper surface of the operating table (1). The upper surface of the operating table (1) is fixedly mounted with a first linear module (101) at both ends, and a U-shaped frame (104) is fixedly mounted between the first linear modules (101). The upper surface of the U-shaped frame (104) is fixedly mounted with a second linear module (102), and a T-shaped plate (103) is fixedly mounted on the upper surface of the U-shaped frame (104). A mounting plate (113) is slidably mounted on one end of the T-shaped plate (103), and a connecting column (106) is rotatably mounted on one end of the mounting plate (113). A flexible leather cutting scissor wheel (108) is rotatably mounted on the lower surface of the connecting column (106).
2. The flexible leather cutting device according to claim 1, characterized in that: Both the first linear module (101) and the second linear module (102) are driven by a motor in the form of gear meshing with a toothed plate.
3. The flexible leather cutting device according to claim 1, characterized in that: A motor (107) is fixedly mounted on one end of the mounting plate (113), and the output shaft of the motor (107) is fixedly connected to the upper surface of the connecting column (106). The upper surface of the mounting plate (113) is fixedly connected to the piston rod of the third electric push rod (105), and the third electric push rod (105) is fixedly mounted on the upper surface of the T-shaped plate (103).
4. The flexible leather cutting device according to claim 1, characterized in that: Furthermore, the U-shaped frame (104) can slide over the upper end of the horizontal pressure column (112) and the pressure contact tensioning mechanism (2) through the slot on the lower surface.
5. The flexible leather cutting device according to claim 1, characterized in that: The pressure-tightening mechanism (2) includes two sets of second electric push rods (201). The two sets of second electric push rods (201) are symmetrically rotated and installed at one end of the upper surface of the operating table (1). A connecting cylinder (202) is fixedly installed at one end of the piston rod of the second electric push rod (201), and a pressure wheel (203) is rotatably installed between the two sets of connecting cylinders (202).
6. The flexible leather cutting device according to claim 5, characterized in that: The inner ring walls of both sets of connecting cylinders (202) are fixedly connected to the outer ring end of the torsion spring (204), while the inner ring end of the torsion spring (204) is fixedly connected to the outer surface of the shaft of the pressure roller (203).
7. A flexible leather cutting device according to claim 6, characterized in that: Guide rods (205) are fixedly installed on one side of the outer side of both sets of connecting cylinders (202), and the guide rods (205) slide inside the U-shaped traction plates (206). The two sets of U-shaped traction plates (206) are symmetrically fixed at both ends of the upper surface of the operating table (1) and are inclined upwards, so that when the second electric push rod (201) pulls the connecting cylinder (202), it can slide inside the U-shaped traction plates (206) through the guide rods (205) fixedly connected on the outer side.